Final answer:
True, Cluster C personality disorders are characterized by anxious or fearful traits with examples including avoidant personality disorder, as defined by the DSM.
Step-by-step explanation:
The statement that Cluster C personality disorders are characterized by anxious or fearful traits, including insecurity and inadequacy, is true. An example of a Cluster C personality disorder is avoidant personality disorder, which aligns with these characteristics. Personality disorders, as defined by the American Psychological Association in the DSM, involve enduring and inflexible patterns that lead to significant distress or impairment. These patterns of behavior are seen as abnormal to society but seem normal to those with the disorder. Avoidant personality disorder, specifically, involves a pattern of social inhibition, feelings of inadequacy, and hypersensitivity to negative evaluation.